Use data from Appendix IIB in the textbook to calculate the equilibrium constants at 25?C for...

Use data from Appendix IIB in the textbook to calculate the equilibrium constants at 25?C for each of the following reactions.

2NO(g)+O2(g)?2NO2(g) .

Express your answer using two significant figures.

Solutions

Expert Solution

2NO(g)+O₂(g) 2NO₂(g) ;=?

= products - reactants

= (2xNO₂(g) ) - [ (2xNO(g)) +(O₂(g)]

= (2x51.3 KJ) - [(2x86.57)+0]

= -70.54 kJ

= -70540 J

Calculation of equilibrium constant :

WE have

Where

R = gas constant = 8.314 J/mol-K

T = temperature in kelvin = 25 ^oC = 25 + 273 = 298 K

Plug the values we get

log K = 12.36

K = 10 ^12.36

= 2.3 x10 ¹²

Therefore the equilibrium constant K = 2.3 x10 ¹²

queen_honey_blossom answered 2 hours ago

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